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Giant Cardboard Dinosaur Puzzle
In this project, I am going to show you how to make large dinosaur skeleton puzzles out of cardboard boxes.

Hand-Crank Geiger Counter
The atomic age meets the Victorian -- charge up this Geiger counter's high-voltage tube using a unique mechanical oscillator that would do Jules Verne proud.

The Fire Tornado
How to re-create a terrifying force of nature using an old record turntable and kerosene. CAUTION: Proceed at your own risk! This is another dangerous, hazardous, perilous project from MAKE Volume 35, "Playing With Fire."

DIY Hacks & How To’s: Sunrise Alarm Clock
In this project, I am going to show you how to make a simple light alarm circuit. The timing is performed by a cheap outlet timer. Then I add a simple LED circuit that gradually increases the brightness of the LEDs over several minutes. You can then put the lights into any housing that you want and make your own sunrise alarm.

DIY Hacks & How To’s: Arduino Controlled Solar Fountain
A fountain can make a nice decorative fixture for your garden. But it isn't always easy to run a power cord out to where you want it. So I decided to run it on solar power. The system is controlled by an Arduino. This allows you to save energy by programming when the fountain will be turned on.

Laser-Cut Book Covers
Use this neat technique to make plywood flexible.

Android-Arduino LED Strip Lights
Connect your smartphone to a microcontroller and make RGB LEDs glow any color with a finger swipe.

Make Your Own On-The-Go (OTG) USB Cable
Learn how to make your own on-the-go (OTG) USB cable for pretty cheep or free if you have the supplies sitting around your house.

Solar-Powered Roasting Spit
This do it yourself project will show you how to make a solar powered barbecue.

How to Build CoffeeBots
Build a simple, programmable robot with personality that’s approachable for all ages.

Build an LED Photometer
Did you know that, although they’re great for emitting light, LEDs are also capable of absorbing light?

Chemical Woodburning
Don’t have a woodburning iron? Use chemicals and a stamp to burn your mark!